I am a fan of both worlds - I spend a good amount of time watching conference videos on youtube and reading articles and I also like reading books. What I like about books is that they put everything in context way better than a short article and/or youtube videos (just think about the difference between a book and movie made after it). Another advantage of well written books is that by providing the context they give you time to think about a possible solution or reflect on a similar real situation before giving you a solution. The information sticks with you better this way in my opinion.